Rockwell Automation 1747-L5xx SLC 500 Modular Hardware Style User Manual User Manual
Page 151
Publication 1747-UM011G-EN-P - June 2008
Troubleshooting 151
•
FLT status indicator is
on
•
All other status
indicators are off
•
Status of any
Communication status
indicator does not
matter
Inadequate system
power
Improper line
power voltage
selection.
Verify proper 120/240V power supply jumper selection. See
•
Power status indicator
is on
•
All other status
indicators are off
•
Status of any
Communication status
indicator does not
matter
Processor not in
run mode
Either improper
mode selected or
user program logic
error.
1. Verify selected processor mode.
2. If in program or test mode, try to enter run mode.
a. If the keyswitch is in the REM position and there is no key,
use the programmer.
b. If the keyswitch is in the REM or PROG position and you
have the key, toggle to the RUN position.
3. If in suspend mode, check user program logic for suspend
instructions.
Line power out of
operating range.
1. Check proper 120/240V power supply jumper selection and
incoming power connections.
2. Monitor for proper line voltage at the incoming power
connections.
Improper seating of
power supply
and/or processor in
the chassis.
1. Remove power and inspect the power supply and processor
chassis connections.
2. Re-install the devices and re-apply power.
IMPORTANT
The processor only operates in slot 0 of the first chassis.
Defective
processor, power
supply, or chassis.
1. Attempt to put processor in run mode in existing chassis.
a. If the keyswitch is in the REM position and there is no key,
use the programmer.
b. If the keyswitch is in the REM or PROG position and you
have the key, toggle to the RUN position.
2. Place the processor in another chassis. Apply power,
reconfigure, and attempt to put processor in run mode. If
unsuccessful, replace the processor.
3. Place the power supply in another chassis and test. If
unsuccessful, replace the power supply. If successful,
replace the original chassis.
SLC 5/03, SLC 5/04, and SLC 5/05 Processor Errors
If the status indicators
indicate
The following
error exists
Probable Cause
Recommended Action